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#ifndef DART_DYNAMICS_SHAPEFRAME_HPP_
#define DART_DYNAMICS_SHAPEFRAME_HPP_

#include <dart/dynamics/EllipsoidShape.hpp>
#include <dart/dynamics/FixedFrame.hpp>
#include <dart/dynamics/TemplatedJacobianNode.hpp>
#include <dart/dynamics/detail/ShapeFrameAspect.hpp>

#include <dart/common/AspectWithVersion.hpp>
#include <dart/common/Signal.hpp>
#include <dart/common/SpecializedForAspect.hpp>

#include <dart/Export.hpp>

#include <Eigen/Dense>

namespace dart {
namespace dynamics {

//==============================================================================
class DART_API VisualAspect final
  : public common::AspectWithVersionedProperties<
        VisualAspect,
        detail::VisualAspectProperties,
        ShapeFrame>
{
public:
  using Base = common::AspectWithVersionedProperties<
      VisualAspect,
      detail::VisualAspectProperties,
      ShapeFrame>;

  /// Constructor
  VisualAspect(const PropertiesData& properties = PropertiesData());

  VisualAspect(const VisualAspect&) = delete;

  /// Set RGBA color
  void setRGBA(const Eigen::Vector4d& color);

  DART_COMMON_GET_ASPECT_PROPERTY(Eigen::Vector4d, RGBA)
  // const Eigen::Vector4d& getRGBA() const;

  DART_COMMON_SET_GET_ASPECT_PROPERTY(bool, Hidden)
  // void setHidden(const bool& value);
  // const bool& getHidden() const;

  DART_COMMON_SET_GET_ASPECT_PROPERTY(bool, Shadowed)
  // void setShadowed(const bool& value);
  // const bool& getShadowed() const;

  /// Identical to setRGB(const Eigen::Vector3d&)
  void setColor(const Eigen::Vector3d& color);

  /// Identical to setRGBA(const Eigen::Vector4d&)
  void setColor(const Eigen::Vector4d& color);

  /// Set RGB color components (leave alpha alone)
  void setRGB(const Eigen::Vector3d& rgb);

  /// Set the transparency of the Shape
  void setAlpha(const double alpha);

  /// Reset the color back to the default and mark it as unspecified.
  void resetColor();

  /// True if no explicit color has been assigned to this VisualAspect.
  bool usesDefaultColor() const;

  /// Default RGBA color used when no explicit color is set.
  static Eigen::Vector4d getDefaultRGBA();

  /// Get color
  Eigen::Vector3d getColor() const;

  /// Get RGB color components
  Eigen::Vector3d getRGB() const;

  /// Get the transparency of the Shape
  double getAlpha() const;

  /// Hide the ShapeNode
  void hide();

  /// Show the ShapeNode
  void show();

  /// True iff the ShapeNode is set to be hidden. Use hide(bool) to change this
  /// setting
  bool isHidden() const;
};

//==============================================================================
class DART_API CollisionAspect final
  : public common::AspectWithVersionedProperties<
        CollisionAspect,
        detail::CollisionAspectProperties,
        ShapeFrame>
{
public:
  CollisionAspect(const CollisionAspect&) = delete;
  CollisionAspect(const PropertiesData& properties = PropertiesData());

  void setCollidable(const bool& value);
  const bool& getCollidable() const;

  /// Return true if this body can collide with others bodies
  bool isCollidable() const;

protected:
  void setComposite(common::Composite* newComposite) override;
  void loseComposite(common::Composite* oldComposite) override;
};

//==============================================================================
class DART_API DynamicsAspect final
  : public common::AspectWithVersionedProperties<
        DynamicsAspect,
        detail::DynamicsAspectProperties,
        ShapeFrame>
{
public:
  using Base = common::AspectWithVersionedProperties<
      DynamicsAspect,
      detail::DynamicsAspectProperties,
      ShapeFrame>;

  DynamicsAspect(const DynamicsAspect&) = delete;

  DynamicsAspect(const PropertiesData& properties = PropertiesData());

  /// Set both primary and secondary friction coefficients to the same value.
  void setFrictionCoeff(const double& value);
  /// Get average of primary and secondary friction coefficients.
  double getFrictionCoeff() const;

  // DART_COMMON_SET_GET_ASPECT_PROPERTY(double, PrimaryFrictionCoeff)
  void setPrimaryFrictionCoeff(const double& value);
  const double& getPrimaryFrictionCoeff() const;

  DART_COMMON_SET_GET_ASPECT_PROPERTY(double, SecondaryFrictionCoeff)
  // void setSecondaryFrictionCoeff(const double& value);
  // const double& getSecondaryFrictionCoeff() const;
  DART_COMMON_SET_GET_ASPECT_PROPERTY(double, RestitutionCoeff)
  // void setRestitutionCoeff(const double& value);
  // const double& getRestitutionCoeff() const;

  /// Slip compliance parameters act as constraint force mixing (cfm)
  /// for the friction constraints.
  /// They start with a default value of -1.0 and will be ignored
  /// in favor of the global default value unless explicitly
  /// set to a positive value.
  DART_COMMON_SET_GET_ASPECT_PROPERTY(double, PrimarySlipCompliance)
  // void sePrimarytSlipCompliance(const double& value);
  // const double& getPrimarySlipCompliance() const;
  DART_COMMON_SET_GET_ASPECT_PROPERTY(double, SecondarySlipCompliance)
  // void setSecondarySlipCompliance(const double& value);
  // const double& getSecondarySlipCompliance() const;

  /// Set the frame for interpreting the first friction direction vector.
  /// The frame pointer defaults to nullptr, which is interpreted as this
  /// ShapeFrame.
  void setFirstFrictionDirectionFrame(const Frame* value);

  /// Get the frame for the first friction direction vector.
  const Frame* getFirstFrictionDirectionFrame() const;

  DART_COMMON_SET_GET_ASPECT_PROPERTY(Eigen::Vector3d, FirstFrictionDirection)
  // void setFirstFrictionDirection(const Eigen::Vector3d& value);
  // const Eigen::Vector3d& getFirstFrictionDirection() const;
};

//==============================================================================
DART_DECLARE_CLASS_WITH_VIRTUAL_BASE_BEGIN
class DART_API ShapeFrame : public virtual common::VersionCounter,
                            public detail::ShapeFrameCompositeBase,
                            public virtual Frame
{
public:
  friend class BodyNode;

  using ShapeUpdatedSignal = common::Signal<void(
      const ShapeFrame* thisShapeFrame,
      const ShapePtr& oldShape,
      const ShapePtr& newShape)>;

  using RelativeTransformUpdatedSignal = common::Signal<void(
      const ShapeFrame* thisShapeFrame,
      const Eigen::Isometry3d& oldTransform,
      const Eigen::Isometry3d& newTransform)>;

  using UniqueProperties = AspectProperties;
  using Properties = UniqueProperties;

  /// Destructor
  virtual ~ShapeFrame() override;

  /// Set the UniqueProperties of this ShapeFrame
  void setProperties(const UniqueProperties& properties);

  /// Set the AspectProperties of this ShapeFrame
  void setAspectProperties(const AspectProperties& properties);

  const AspectProperties& getAspectProperties() const;

  /// Set shape
  void setShape(const ShapePtr& shape);

  /// Return shape
  ShapePtr getShape();

  /// Return (const) shape
  ConstShapePtr getShape() const;

  DART_BAKE_SPECIALIZED_ASPECT(VisualAspect)

  DART_BAKE_SPECIALIZED_ASPECT(CollisionAspect)

  DART_BAKE_SPECIALIZED_ASPECT(DynamicsAspect)

  // Documentation inherited
  ShapeFrame* asShapeFrame() override;

  // Documentation inherited
  const ShapeFrame* asShapeFrame() const override;

  /// Returns true if this Frame is a ShapeNode
  bool isShapeNode() const;

  /// Convert 'this' into a ShapeNode pointer if ShapeFrame is a ShapeNode,
  /// otherwise return nullptr
  virtual ShapeNode* asShapeNode();

  /// Convert 'const this' into a ShapeNode pointer if ShapeFrame is a
  /// ShapeNode, otherwise return nullptr.
  ///
  /// This should be preferred over performing a dynamic_cast when you want to
  /// cast a ShapeFrame into a ShapeNode, because this method costs less.
  virtual const ShapeNode* asShapeNode() const;

protected:
  /// Constructor
  ShapeFrame(Frame* parent, const Properties& properties);

  /// Constructor
  ShapeFrame(Frame* parent, const ShapePtr& shape = nullptr);

  /// Delegating constructor
  ShapeFrame(const std::tuple<Frame*, Properties>& args);

  /// Contains whether or not this is a ShapeNode
  bool mAmShapeNode;

  /// Shape updated signal
  ShapeUpdatedSignal mShapeUpdatedSignal;

  /// Relative transformation updated signal
  RelativeTransformUpdatedSignal mRelativeTransformUpdatedSignal;

  /// Connect to changes in the Shape version
  common::Connection mConnectionForShapeVersionChange;

public:
  /// Slot register for shape updated signal
  common::SlotRegister<ShapeUpdatedSignal> onShapeUpdated;

  /// Slot register for relative transformation updated signal
  common::SlotRegister<RelativeTransformUpdatedSignal>
      onRelativeTransformUpdated;
};
DART_DECLARE_CLASS_WITH_VIRTUAL_BASE_END

} // namespace dynamics
} // namespace dart

#endif // DART_DYNAMICS_SHAPEFRAME_HPP_
